General video · Level C1 - Part 2
How It's Made Olive Oil
The ancient Greek poet Homer called olive oil liquid gold, and today a little drizzle can still dazzle.
Level: C1 · 50 sentences
Transcript
- The ancient Greek poet Homer called olive oil liquid gold,
- and today a little drizzle can still dazzle.
- Like fine wine, premium olive oil can bring a complexity of flavours to the table
- and create a real taste sensation.
- Lovely.
- The roots of the olive tree stretch far into the past.
- For thousands of years, people have harvested its fruit and crushed it with stones to extract the precious oil.
- In those early days, olive oil wasn't just used in food,
- it fuelled lamps and was a medicinal ointment.
- Today's thriving olive groves are living proof that our appetite for olive oil hasn't waned.
- When green olives turn a violet red, they're ripe and ready for harvest.
- Workers shake the olives off the branch with vibrating rakes.
- The olives fall on nets spread beneath the trees.
- The harvested olives are then funneled into the factory.
- They fall down a chute into a large vat of pure water.
- A hose sucks the olives and water into a vibrating bin.
- This separates out leaves and twigs as the water drains away.
- The cleaned olives now bounce merrily on their way towards the crusher.
- A few centuries ago, the crusher was an apparatus powered by a donkey.
- Today though, a motor drives 600 kilogram granite wheels to grind the olives, pits and all, into a paste.
- Once the paste reaches the desired consistency,
- it's over to a computerised system that regulates the temperature of the paste as an auger mixes it.
- The oil is then separated from the paste using this machine.
- Traditional extracting techniques involve spreading the paste on mats
- and then stacking them to press out the oil.
- This system is more high-tech.
- Rows of metal plates dip into the paste and the oil adheres to them.
- A spin in a centrifuge separates the residual paste from the oil.
- The result is virgin olive oil.
- A sample of every batch goes to the testing room,
- where there's a man who has a nose for the job.
- He inhales the olive oil's aroma.
- Like a glass of fine wine, it should have a certain bouquet,
- and it should taste intensely fruity.
- If the oil makes the grade with this tester,
- the entire batch is ready for packaging.
- The packing process is entirely automated,
- ensuring it's all done hygienically.
- A conveyor funnels these tins into a line for filling.
- A mechanised system then feeds the olive oil directly from big tanks into the tins.
- A measuring device controls the amount that goes into each one.
- At the next station, a metal disc is inserted for the bottom of the can.
- The conveyor flips the can so it lands right side up, ready to pack.
- The premium grade oil is bottled.
- Dark glass is used to protect the oil from the sun's ultraviolet light,
- which could cause the olive oil to degrade and lose its intensity.
- After an automated fill-up, the threaded necks on the bottles are then capped.
- Machinery then press fits and screws the caps on for an airtight seal.
- Equipment then glues and applies the labels to the bottles.
- Preserved and protected, this olive oil is now on its way to the shops and ultimately the table.